Each asset will have a space and weight value that is used to automatically calculate how much stuff can be carried by a person, barge, boat, etc. or stored at the basecamp or townhall.
Assets distributed by the game will be limited in number. Actual cap will depend on player base and game development within the first 2 years. Crafted items will not be limited, the economy will keep these under control.
For example, a single person house will take up 250 squares. That house can be expanded to take up more squares to store more stuff.
Some salvaged items are repairable and require other salvaged items to repair. This is where professions and hobbies come into play.
Common items are repairable by anyone, however, hard to find and rare items are only repairable by specific professions. Anyone may buy, sell or trade any item.